178 Transactions of the Boyal Society of South Africa. 
1897, to December, 1919, comprising 298 apogees. The method followed is 
the same as that of the previous paper, departures from the hourly means 
being arranged in hours of the lunar day. This is no doubt a better way of 
dealing with the matter (though a much more laborious one) than that of 
merely tabulating the velocities themselves, even though it may not be so 
necessary as in the case of perigee, seeing that the moon's culminations at 
apogee are fairly evenly distributed over the hours of the solar day. The 
observations made use of are those for the day of apogee together with those 
of the day before and the day after, 894 days in all. 
Wind Velocity Variation at Apogee in Miles an Hour. 
Hour. 
Mean 
" Noon " 
" Midnight 
" Horizon ' 
apOO'GG. 
apogee. 
apogee. 
L.M.P 
10-054 
10-093 
10036 
10-045 
II 
10-140 
10071 
10-146 
10167 
III 
10-140 
10-080 
10-151 
10-160 
lY 
10-093 
10-069 
10-167 
10-067 
V 
10-002 
9-957 
10-164 
9-945 
YI 
9-925 
9-912 
10-111 
9-841 
YII 
9-881 
9-923 
10-016 
9-797 
Vlii 
9*882 
1 A. AO K 
lU U25 
9-900 
Q.Q1 A 
IX 
9-890 
10-053 
9-929 
9-799 
X 
9-876 
10-037 
9-936 
9-776 
XI 
9-854 
9-926 
10015 
9-744 
XII 
9-825 
9-862 
10-017 
9-715 
U.M.P 
9-814 
9-863 
10-019 
9-694 
XIY 
9-823 
9-935 
9-952 
9-712 
XY 
9-828 
9-973 
9-860 
9-750 
XYI 
9-839 
9-986 
9-778 
9-804 
XYII 
9-839 
9-980 
9-727 
9-831 
XYIII 
9-832 
10-014 
9-694 
9-818 
XIX 
9-821 
9-998 
9-692 
9-805 
XX 
9-817 
10-007 
9-707 
9-786 
XXI 
9-808 
9-976 
9-731 
9-771 
XXII 
9-817 
9-969 
9-762 
9-777 
XXIII 
9-829 
9-989 
9-791 
9-777 
XXIY 
9-869 
10084 
9-832 
9-792 
L.M.P 
9-964 
10114 
9-929 
9-915 
Mean 
9-899 
9-996 
9-922 
9-844 
Eange 
0-332 
0-252 
0-475 
0-473 
No. 
894 
204 
225 
465 
In the above table column 1 indicates the hours of the lunar day. 
Column 2 gives the hourly means of the deviations V — v + 10 for all the 
894 days. 
